Adjusting device for turnable parts.



c. TUNJES. ADJUSTING DEVICE FOR TURNABLE PARTS.

' APPLICATION FILED APR.'18,1911.

' Patented J an. 30, 1912 TQ r CARL TNJES, F DELMENHORST, GERMANY.

ADJUSTING'DEVICE FOR TURNABLE PARTS.

Specification of Letters Patent.

Application filed April 18, 1911.

Patented an. 30,1912. Serial No. 621,814.

To all whom it may concern:

Be it known that I, CARL ToNJEs, a citizen of the Empire of Germany, residing at Delmenhorst, in the Empire of Germany, have invented a new and useful Adjusting Device for Turnable Parts, of which the following is a specification.

My invention consists of an adjusting device for turnable parts, which device permits the part to be easily adjusted in any position, also to be easily released and turned into any other position, after which it can easily be again secured.

I will now proceed to describe my invention with reference to the accompanying drawings, in which Figure 1 is an elevation of an adjusting device and a turnable part assumed to be a part of a protecting window such as is used in ordinary automobiles, parts being shown in section and an intermediate part being omitted, and Fig. 2 shows a modification of the left part in Fig. 1.

Similar letters of reference refer to similar parts throughout the several views.

In order to illustrate the use of my invention I have shown in Fig. 1 a protecting window in front of the driver of any ordinary automobile, which window requires to be either placed vertically or adjusted at an angle convenient to the driver. This window consists of a glass plate a and a wooden frame Z) and requires to be rocked on a horizontal shaft e. For this purpose two metallie plates 0 c are fastenedon the sides of the frame Z) and are made in one with two opposite disks (Z (Z turnable on the shaft 6. Two supports f f secured on the automobile body are shown to be connected with two bearings y 5 by means of tubes j and projections p p but they may also be'made in one with the bearings. The disks (Z (Z are each provided with a friction cone 9 and a concentric groove 1*, in which a corresponding projection of the bearing 9 engages, so that in this manner the disk (Z is prevented from lateral displacement. The twq bearings g g are on the inside partly cylindrical and partly conical and their conical parts form friction cones, so that annular spaces of a wedgeshaped cross section are left bet-ween them and the friction cones g g on the disks (Z (Z. in these annular spaces engage two corresponding wedges hh which project from the inner friction cones g g and are adapted to be pressed toward the Windows by two 'the shaft e annular disks la and m turnable on the shaft e. Preferably the wedges h it are each di= vided into several portions, between which radial slots 2' i are left. The shaft 0 is proferably provided at one end with a head I and at the other end with a screw-thread s, in which a small hand-wheel it engages. The shaft 6 may be prevented from turning in any known manner. The headl is adapted to bear against the disk 4% and the hand,- wheel a. against the other disk k. It will be seen that each bearing 9 forms with the corresponding disk (Z a friction clutch. in order to protect this clutch from dust or dirt a disk 0 is preferably provided, which is fastened on the bearing 9 and is made to compass the head Z or the nave of the handwheel n respectively in such a manner, that and the hand-wheel n are not prevented from endwise motion.

2? denotes a sort of hood, which incloses the shaft e and is fastened oil both sides of the lower stile of the frame 7;. It equally serves for protecting the two friction clutches from dust and dirt. After a little loosening the hand-wheel n the two friction clutches described permit the window to be turned in either direction without incurring any danger that the window'when released will tilt over and be damaged by striking the body or other part of the automobile. After adjusting the window, it can be secured in the new position by screwing-home the hand-wheel a. When desired, the hand- Whe'el a may be again loosened for turning the window into any other position, after which it can be again secured. This is a great advantage over the ordinary turnable protecting windows in automobiles, which windows are very apt to tilt over on being disconnected from the supporting frame. The ordinary protecting windows can moreover be adjusted only in any of several determined positions, since either toothed rings are employed, in which a spring pressed bolt or the like engages, so that the window can he turned only through an angle corresponding to at least one tooth pitch, or notched segments are employed, which permit only four or five difi erent positions of the window. My device, on the contrary, renders it possible to adjust the protecting window in any position. v

The adjusting device may be simplified in a manner illustrated at Fig. 2, in which the protecting disk 0 is made in one with theinmate friction rings interposed between the bear- 15 ings and disk flanges, a spindle received by the disk-apertures, means on one end of said spindle for operatively engaging one of said rings, and a nut threaded on the other end of said spindle and adjustably engaging the 20 other ring.

In Witness whereof Ihave hereunto signed my name in the presence of two subscribing Witnesses.

CARL 'Jl-ONJ ES.

Witnesses:

MARTIN FISCHER, FREDERICK HOYERMANN. 

